632 GEOLOGICAL SURVEY OF NEW JERSEY. 



ochraceous crest of soft feathers on each side of occiput. Length, 

 14 inches; wings, 6 inches; bill, 3| inches. 



"About as frequently met with as the crested species ; and as 

 in that case, generally the young birds are met with. Ascends 

 the rivers more than the 'red-necked' species." 



C. cristatus, L. Crested Grebe. 



Bill about as long as head ; lower parts white, not mottled ; 

 nuptial plumage, throat and chin buffy white, becoming reddish 

 on ruif ; top of head and occipital crests black, rest of plumage 

 dark brown ; secondaries white. Length, 23 inches ; wings, 7 

 inches ; bill, 2 inches. " Nearly cosmopolitan, but no authentic 

 records for any portion of America." — Ridgway. " Not Ameri- 

 can." — Jordan. 



" Much less common than the red-necked grebe. Met with 

 only in winter, and nearly all young birds. Has been found on 

 the Raritan, above New Brunswick." — [C. C. A.] Possibly 

 varieties or younger birds of C. auritus have been mistaken for 

 C7'istatus. 



C. holbcelii, Reinh. (P. griaeigena — Abbott's Catalogue.) Recl-necked 

 Grebe. Holbcell's Grebe. 



Lower parts mottled white or ash ; nuptial plumage, top of 

 head black, rest of head gray ; neck brownish red ; crests and 

 ruffs not large. Length, 18 to 20 inches; wings, 8 inches; bill, 

 2 inches. Northern. 



" This species is only a winter visitor, and is never abundantly 

 met with. Is found about Delaware Bay, but seldom ' up the 

 river.' " 



PODILYMBUS, Less. 



P. podiceps, L. Devil Diver. Pied-billed Grebe. Diedai)per. Hell- 

 diver. Water-witch. Dab-chick, &c. 



Bill stout, hooked ; no ruif or crest ; brownish above, silvery 

 ash below ; nuptial plumage, chin, throat, cheek, black ; rest of 

 head brownish gray ; spotted with dusky below ; bill whitish, 

 with dark band ; in winter, black replaced by dull white ; no 

 spots below ; bill brownish ; no black band ; sides of head striped 

 with brown, in young. Length, 14 inches; wings, 5 inches; 

 bill, 1 inch. 



" Very common, and known under a legion of names, but 



